Torsional tensile support with pre-tightening function

Abstract

The utility model provides a twistable tensile support with a pre-tightening function, which comprises an upper connecting plate, a lower connecting plate, an upper sliding rail, a lower sliding rail, an upper sliding block and a lower sliding block, the upper connecting plate is fixedly connected with a building main body, the lower connecting plate is fixedly connected with a foundation, the upper connecting plate is positioned above the lower connecting plate, and the lower connecting plate is positioned above the lower connecting plate. The upper sliding rail is fixed to the side, facing the lower connecting plate, of the upper connecting plate, the lower sliding rail is fixed to the side, facing the upper connecting plate, of the lower connecting plate, the upper sliding rail and the lower sliding rail are arranged in a cross shape on the horizontal plane, the upper sliding block is in sliding connection with the upper sliding rail, and the lower sliding block is in sliding connection with the lower sliding rail. The double-end stud comprises an upper threaded part, a lower threaded part and a connecting part, the upper threaded part and the lower threaded part are fixed to the two ends of the connecting part respectively, the upper threaded part is in threaded connection with the upper sliding block, the lower threaded part is in threaded connection with the lower sliding block, the rotating direction of the upper threaded part is opposite to the rotating direction of the lower threaded part, and the purpose that the sliding rail and the sliding blocks are not prone to being clamped is achieved.

Description

Technical Field

[0001] The utility model relates to the field of construction, in particular to a torsion-resistant tensile support with a pre-tightening function. Background Art

[0002] Horizontal rubber isolation bearings are a simple and effective isolation technology. They have been widely used in various low-rise and medium-rise buildings and have achieved good isolation effects. However, there are certain safety risks in the application of horizontal rubber isolation bearings in high-rise and super-high-rise buildings. Since high-rise and super-high-rise buildings generate a large overturning moment under the action of horizontal seismic forces, rubber isolation bearings are prone to tension under strong earthquake motions. In particular, structures with large aspect ratios will produce obvious bumps and shakes under strong earthquakes, which will make the tension of rubber isolation bearings more obvious. The vertical tensile capacity of horizontal rubber bearings is significantly smaller than their vertical compressive capacity. Therefore, in order to ensure the safety of building structures in strong earthquakes and enable horizontal rubber bearings to fully exert their isolation effects, it is necessary to install tensile bearings in the isolation layer.

[0003] At present, a Chinese patent with authorization announcement number CN217399968U discloses a tensile device used in conjunction with a seismic isolation layer; it includes two upper and lower flange plates, guide rails are provided on the opposite side surfaces of the two flange plates, the two guide rails are cross-arranged in both directions, and the guide rails are provided with sliding grooves that can slide on the guide rails, one of the sliding grooves is provided with a T-shaped undercut connected by a first high-strength bolt at the bottom, the T-shaped part on the T-shaped undercut cooperates with a limiter, the limiter is connected to the lower connecting piece by a second high-strength bolt, the lower connecting piece is connected to another sliding groove, and the other sliding groove cooperates with another guide rail.

[0004] The flange plate is connected to the embedded anchor bars through nuts, so that the upper flange plate is fixedly connected to the building body, and the lower flange plate is fixedly connected to the foundation.

[0005] This tensile device transmits vertical tension by connecting sliders (slideways) on two mutually perpendicular guide rails through high-strength bolts. In addition to horizontal movement, when torsional deformation occurs, the perpendicular guide rails cannot release angular deformation, which can easily cause the guide rails and sliders to get stuck and the tensile structure to fail. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a twistable tensile support with a pre-tightening function, so that the guide rail and the slider are not easily stuck, and the tensile structure can work normally.

[0007] The lower sliding plate is fixed with the upper sliding plate and the lower sliding plate is fixed with the lower sliding plate to the upper sliding plate, and the lower sliding plate is slidably connected to the base by the screw thread, and the screw thread is fixedly connected to the base by the screw thread.

[0008] To implement the above technical solution, since the stud connects the upper slider and the lower slider, the entire cross-section of the stud bears tensile stress. Compared with multiple volume performance bolts in the prior art, the tensile force is greater and the structure is more reliable. Moreover, since the rotation directions of the upper threaded portion and the lower threaded portion are opposite, the stud can be tightened or loosened by rotating the stud in one direction, thereby achieving tensile pre-tightening after installation. In addition, when the seismic isolation layer has torsional deformation, the thread pair can fully release the force of the torsional deformation, so that the upper slider and the lower slider can slide smoothly on the upper slide rail and the lower slide rail respectively, so that the tensile structure can work normally.

[0009] As a preferred solution of the utility model, an extension hole is opened on the outer wall of the connecting part, and the extension hole is arranged along the radial direction of the connecting part.

[0010] To implement the above technical solution, the assist rod is threadedly connected to the extension hole, and a force is applied to the assist rod to rotate the connection portion, so as to facilitate installation or removal of the stud.

[0011] As a preferred solution of the utility model, an upper buffer slope is provided on one side of the upper slide rail facing the upper connecting plate, and the upper buffer slope is located at the edge of the upper slide rail.

[0012] To implement the above technical solution, when the upper connecting plate is bent to a certain extent, the upper connecting plate is bent along the upper buffer slope, so that the upper slide rail is not prone to significant deformation, so that the upper slider can slide along the upper slide rail.

[0013] As a preferred solution of the utility model, a lower buffer slope is provided on one side of the lower sliding rail facing the lower connecting plate, and the lower buffer slope is located at the edge of the lower sliding rail.

[0014] To implement the above technical solution, when the lower connecting plate is bent to a certain extent, the lower connecting plate is bent along the lower buffer slope, so that the lower sliding rail is not easily deformed, so that the lower sliding block can slide smoothly along the lower sliding rail.

[0015] As a preferred solution of the utility model, a cleaning structure for contacting with the lower sliding rail is arranged on the lower sliding block, and the cleaning structure is located at the end of the lower sliding block.

[0016] To implement the above technical solution, when the lower slider slides along the length direction of the lower slide rail, the cleaning structure cleans the upper surface of the lower slide rail, so that the lower slider is not easily stuck on the lower slide rail.

[0017] As a preferred embodiment of the present invention, the cleaning structure includes a fixed seat, a rotating shaft, and a cleaning disc. The fixed seat is fixedly connected to the end of the lower slider, the rotating shaft is rotatably connected to the fixed seat and contacts the side wall of the lower slide rail, and the cleaning disc is fixed on the rotating shaft and is used to contact the upper surface of the lower slide rail.

[0018] To implement the above technical solution, when the lower slider and the fixed seat slide along the length direction of the lower slide rail, the rotating shaft rotates due to the friction force, so that the cleaning disc cleans the upper surface of the lower slide rail, so that the gravel falling on the lower slide rail is swept away, making it difficult for the lower slider to get stuck on the lower slide rail due to the gravel.

[0019] As a preferred solution of the utility model, bristles are fixedly connected to the cleaning disc, and the cleaning disc contacts the upper surface of the lower sliding rail through the bristles.

[0020] By implementing the above technical solution and setting the bristles, the cleaning efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the positions of the upper connecting plate and the lower connecting plate;

[0022] Figure 2 To reflect the structural diagram of the stud;

[0023] Figure 3 A structural diagram showing a cleaning structure.

[0024] Figure numerals: 11, upper connecting plate; 12, lower connecting plate; 21, upper slide rail; 22, lower slide rail; 31, upper slider; 32, lower slider; 41, upper buffer slope; 42, lower buffer slope; 5, stud; 51, upper threaded portion; 52, lower threaded portion; 53, connecting portion; 54, extension hole; 6, cleaning structure; 61, fixed seat; 62, rotating shaft; 63, cleaning disc; 7, bristles. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] A torsion tensile bearing with a pre-tightening function comprises an upper connecting plate 11, a lower connecting plate 12, an upper slide rail 21, a lower slide rail 22, an upper slider 31 and a lower slider 32. The upper connecting plate 11 is fixedly connected to the building body, and the lower connecting plate 12 is fixedly connected to the foundation. The upper connecting plate 11 and the lower connecting plate 12 are both rectangular and horizontally placed. The upper connecting plate 11 is located above the lower connecting plate 12.

[0027] The upper slide rail 21 is welded to the side of the upper connecting plate 11 facing the lower connecting plate 12, and the lower slide rail 22 is welded to the side of the lower connecting plate 12 facing the upper connecting plate 11. The upper slide rail 21 and the lower slide rail 22 are both long strips and have an I-shaped cross section. The projections of the upper slide rail 21 and the lower slide rail 22 on the horizontal plane are arranged in a cross.

[0028] The length direction of the upper slide rail 21 is parallel to the length direction of the upper connecting plate 11 ; the length direction of the lower slide rail 22 is parallel to the length direction of the lower connecting plate 12 .

[0029] An upper buffer slope 41 is provided on the side of the upper rail 21 facing the upper connecting plate 11. The upper buffer slope 41 is located at the edge of the upper rail 21. There are two upper buffer slopes 41. A lower buffer slope 42 is provided on the side of the lower rail 22 facing the lower connecting plate 12. The lower buffer slope 42 is located at the edge of the lower rail 22. There are also two lower buffer slopes 42.

[0030] The upper slider 31 is slidably connected to the upper slide rail 21 , and the lower slider 32 is slidably connected to the lower slide rail 22 .

[0031] A stud 5 is provided between the upper slider 31 and the lower slider 32. The stud 5 includes an upper threaded portion 51, a lower threaded portion 52 and a connecting portion 53. The upper threaded portion 51 and the lower threaded portion 52 are respectively located at two ends of the connecting portion 53, and the upper threaded portion 51, the lower threaded portion 52 and the connecting portion 53 are integrally arranged and coaxially arranged. The upper threaded portion 51 is threadedly connected to the upper slider 31, and the lower threaded portion 52 is threadedly connected to the lower slider 32. The upper threaded portion 51 and the lower threaded portion 52 have opposite rotation directions.

[0032] An extension hole 54 is formed on the outer wall of the connecting portion 53, and the extension hole 54 is arranged along the radial direction of the connecting portion 53. A booster rod is threadedly connected to the extension hole 54, and a force is applied to the booster rod along the circumferential direction of the connecting portion 53, so that the connecting portion 53 drives the upper threaded portion 51 and the lower threaded portion 52 to rotate.

[0033] When an earthquake occurs, a small amount of gravel will fall onto the lower slide rail 22. A cleaning structure 6 is provided on the lower slider 32 for contacting the lower slide rail 22. The cleaning structure 6 is located at the end of the lower slider 32. The gravel is swept off the lower slide rail 22 by the cleaning structure 6, so that the lower slider 32 can slide smoothly along the lower slide rail 22. A cleaning structure 6 is provided at each end of the lower slider 32.

[0034] The cleaning structure 6 includes a fixed seat 61, a rotating shaft 62, and a cleaning disc 63. The fixed seat 61 is fixedly connected to the end of the lower slider 32, and there is a gap between the upper surface of the lower rail 22 and the fixed seat 61. The rotating shaft 62 is rotatably connected to the inner wall of the fixed seat 61, so that the middle part of the rotating shaft 62 contacts the side wall of the lower rail 22. The cleaning disc 63 is fixed to the rotating shaft 62 and is used to contact the upper surface of the lower rail 22. The outer wall of the middle part of the rotating shaft 62 and the cleaning disc 63 are made of rubber.

[0035] A plurality of bristles 7 made of rubber are fixedly connected to the cleaning disc 63 , and the cleaning disc 63 contacts the upper surface of the lower sliding rail 22 through the bristles 7 .

[0036] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A torsion tensile support with a pre-tightening function, comprising an upper connecting plate (11), a lower connecting plate (12), an upper slide rail (21), a lower slide rail (22), an upper slider (31) and a lower slider (32), wherein the upper connecting plate (11) is fixedly connected to a building main body, the lower connecting plate (12) is fixedly connected to a foundation, the upper connecting plate (11) is located above the lower connecting plate (12), the upper slide rail (21) is fixed to a side of the upper connecting plate (11) facing the lower connecting plate (12), the lower slide rail (22) is fixed to a side of the lower connecting plate (12) facing the upper connecting plate (11), the upper slide rail (21) and the lower slide rail (22) are arranged in a cross on a horizontal plane, the upper slider (31) is slidably connected to the upper slide rail (21), and the lower slider (32) is slidably connected to the lower slide rail (22), wherein: The invention also comprises a stud bolt (5), wherein the stud bolt (5) comprises an upper threaded portion (51), a lower threaded portion (52) and a connecting portion (53), wherein the upper threaded portion (51) and the lower threaded portion (52) are respectively fixed to two ends of the connecting portion (53), the upper threaded portion (51) is threadedly connected to the upper slider (31), and the lower threaded portion (52) is threadedly connected to the lower slider (32), and the upper threaded portion (51) and the lower threaded portion (52) have opposite rotation directions.

2. The torsion-resistant tensile support with pre-tightening function according to claim 1 is characterized in that: An extension hole (54) is provided on the outer wall of the connecting portion (53), and the extension hole (54) is arranged along the radial direction of the connecting portion (53).

3. The torsion-resistant tensile support with pre-tightening function according to claim 1 is characterized in that: An upper buffer slope (41) is provided on one side of the upper slide rail (21) facing the upper connecting plate (11), and the upper buffer slope (41) is located at the edge of the upper slide rail (21).

4. A torsional tensile support with pre-tightening function according to claim 1 or 3, characterized in that: A lower buffer slope (42) is provided on one side of the lower sliding rail (22) facing the lower connecting plate (12), and the lower buffer slope (42) is located at the edge of the lower sliding rail (22).

5. The torsionally tensile support with pre-tightening function according to claim 1 is characterized in that: The lower slider (32) is provided with a cleaning structure (6) for contacting the lower lower rail (22), and the cleaning structure (6) is located at the end of the lower slider (32).

6. The torsion-resistant tensile support with pre-tightening function according to claim 5 is characterized in that: The cleaning structure (6) comprises a fixed seat (61), a rotating shaft (62), and a cleaning disc (63); the fixed seat (61) is fixedly connected to the end of the lower slider (32); the rotating shaft (62) is rotatably connected to the fixed seat (61) and contacts the side wall of the lower lower rail (22); and the cleaning disc (63) is fixed to the rotating shaft (62) and is used to contact the upper surface of the lower lower rail (22).

7. The torsion-resistant tensile support with pre-tightening function according to claim 6 is characterized in that: The cleaning disc (63) is fixedly connected with bristles (7), and the cleaning disc (63) contacts the upper surface of the lower sliding rail (22) through the bristles (7).

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